Self-threading loom-shuttle.



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J. H. NORTHBDPQ V SELF THREADING LOOK SHUTTLE,

(Application filed \TIXL 31, 1896.)

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UNITED STATES,

PATENT OFFICE.

JAMES H. NORTHROP, or HOlEDALE, MASSACHUSETTS, ASSlGNOR T GEO. DRAPER it sons, OF SAME PLACE.

SELF-THREADING LOOM-SHUTTLE.

SPECIFICATION forming part of Letters Patent N 0. 634,830, dated October 10, 1899.

Application filed January 31, 1896. Serial No. 577,531. (No mcdelJ x latter as it is thrown across the shed.

In the threading-block for the shuttle, herei nafter to be described, I have formed the entrance to the threading passage or slot with side walls diverging toward the point of the 2b filling-carrier to facilitate the entrance of the filling-thread and its passage through the passage andI have also provided an overlapping cover which extends over a large portion of the threading passage or slot to prevent the 2 5 thread from coming out of it.

Figure 1 is a perspective view of a shuttle embodying my invention with a filling carrier or bobbin in position therein. Fig. 2 is a top or plan view of the delivery end of the shuttle with the threading=block removed.

Fig. 3 is a like View with the threading-block in position. Fig. 4 is a side elevation of the delivery end of the shuttle, and Figs. 5, 6, and 7 are detail views in side elevation and under side and rear end elevation of the threading-block detached.

The open shuttle body A, adapted to re- 'ceive a filling carrier or bobbin B, Fig. 1, and provided with a side delivery-eye e, may be 40 and is of usual construction, the fore part of the shuttle body being cut out or recessed at a a a Fig. 2, to receive and position the threading-block to be described. The threading-block is shown separately in Figs. 5, 6,

4'5 and 7 as comprising a partly cylindrical body 17, having upturned walls 3) and b the body being seated in the recess ct of the shuttle and retained in place by a suitable screw s, Fig. 4. As best shown in Fig. 7, the wall I) has attached to or forming part of it a scroll c,

substantially in alinement with the filling being led into the said passage.

carrier, into which the filling-thread is led from the threading passage or slot (1, formed by the wall 12 and the exterior of the scroll. The wall 1) is farthest from the scroll c at its rear end, gradually converging to the forward part of the threading-passage (1, making aflaring or divergent entrance thereto, which in actual practice greatly assists the thread in An upright enlargement b on the wall 17 enters the groove a in the shuttle-body. The forward under part of the wall, cut away at b for the purpose, is held in the recess (1 while its up per edge inclines toward the point of the shuttle-body. The wall I) is forwardly extended to form a horn f, the curved lower edge of which guides the thread from the threading-passage d to the slot or notch e"of the delivery-eye 2, said horn f having a laterally-extended head or shelf f, shown in Fig. 5 as bent to coincide with the slope of the top of the wall 17 and overlapping it at f across the threading-passage d in front of and above the scroll-eye, to'prevent the removal of the thread from the passage. At its opposite side the head or shelf-of the horn extends at f over the entrance to the deliveryeye 6, forming with the wall e ct the shuttle-body a passage-way for the thread to the eye. When the thread enters the flaring end of the passage 61, it must pass beneath the overlap f to enterfullyinto the passage, and thence pass into the scroll-eye c, the horn f and part f of the head guiding the thread to the delivery-eye e.

My invention is not restricted to the precise construction and arrangement herein shown and-described,as the same may be modified without departing from the spirit and scope of my invention.

Having fully described my invention, what I claim, and desire to secure by Letters Patcut, is-- 1. "In a self-threading shuttle, having a side delivery eye, a scroll-eye in line with the filling-carrier to receive the filling thread, a thread-passage leading to said scroll-eye and provided with a flaring entrance, and a laterally-extended horn to guide the thread from the leading end of the scroll to the delivery eye, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of 10 two subscribing Witnesses. Y

JAMES H. NORTHROP.

Vitnesses; GEO. OTIS DRAPER,

O. N. NICHOLS. 

